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Developers • source code
Hello, I am a graduate student. May I ask if you can analyze the HYSPLIT source code? I need the source code for research purposes and not for commercial use. I really need it! Thank you very much!...
View ArticleDevelopers • Re: source code
In order to request the HYSPLIT source code, you must first register with HYSPLIT. If you are not registered with HYSPLIT, please visit https://www.ready.noaa.gov/HYSPLIT_register.php and follow the...
View ArticleBugs • Re: Division by zero problems with global grid that includes poles
Found a third location where this is happening. In advsti.f, when gspdx = 0 at the poles, then the calculation of UU becomes ill defined.Statistics: Posted by mneish — September 23rd, 2025, 2:12 pm
View ArticleHYSPLIT for PCs • Re: HYSPLIT PC Installer Corrupt
Just wanted to second what iarsenea has said. I got the same error messages when launching from the .exe file despite downloading on a secure network, and despite getting the correct SHA1 checksum in...
View ArticleUsers • ERA5 Ensemble Conversion
Hi, On the hysplit_metdata GitHub page, it says ‘era52arl will also convert the ensemble data.’ https://github.com/amcz/hysplit_metdata/tree/masterMay I ask when ensemble ERA5 data is provided to...
View ArticleIn-line WRF-HYSPLIT coupling • Compilers for inline WRF-HYSPLIT
Hello,I was looking at the readme for the in-line WRF-HYSPLIT and it says to use the intel compiler to compile. I was just wondering if other compilers can be used e.g., GCC? thanks!Statistics: Posted...
View ArticleConversion programs • convert IFS forecast data (GRIB2) to ARL format
Hello hyspliters,I would like to convert IFS data which is in GRIB2 data to .ARl and run in hysplit. Is there any function in 'exec' that would enable to me do this? If not, how can I approach this...
View ArticleGeneral questions on meteorological data needed for HYSPLIT • Using rotated...
Hello,I want to use Hysplit with Environment Canada's met data, which natively is in rotated latlong (https://eccc-msc.github.io/open-data/ms ... tamart_en/). I am working on a conversion program...
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Dispersion Model • HAZMAT Materials for Dispersion
Hi, all. I am currently working on a project that involves both ALOHA and HYSPLIT for HAZMAT situations. ALOHA is a great tool, however some of its limitations could cause an issue if there was a...
View ArticleUsers • Re: Hysplit doesn't complete days of simulation with era5 when arrive...
Hi Ruth, Maybe a bit late for you but I'm sharing this in case it might help other users. I am running a lot of trajectories in the Arctic with ERA5 meteo files a input. I only took the northern...
View ArticleDispersion Model • Re: HAZMAT Materials for Dispersion
Online HYSPLIT for registered users (at https://www.ready.noaa.gov/HYSPLIT_disp.php) supports the modeling of chemical dispersion and produces plume concentrations in parts per million (ppm). Both the...
View ArticleDispersion Model • How to do run with different starting locations at...
Hello, I am wanting to run a month long simulation, where there are emission of my pollutant at different location at each of these times. i.e., hour 1 release from 50 locations, while hour 2 release...
View ArticleHYSPLIT for LINUX • version v5.2.1
Hi I am looking for a binary or source code for hycs_std v5.2.1 (version of 5.2.1, Last Changed Date: 2022-05-16).Is it possible to get that file? Any leads?Many thanks!!Statistics: Posted by...
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Conversion programs • Converting French AROME and ARPEGE Models to ARL Format
Hello,I would like to use the French AROME and ARPEGE models in addition to the ECMWF European model for HYSPLIT.I already have a bash routine that allows me to convert ECMWF data to ARL format using...
View ArticleHYSPLIT for LINUX • Re: version v5.2.1
Are you looking for the public version 5.2.1 or the registered version?Statistics: Posted by sonny.zinn — December 3rd, 2025, 2:11 pm
View ArticleGeneral questions on meteorological data needed for HYSPLIT • Im glad I...
Thanks a lot! Quite a lot of data!Statistics: Posted by DonetteM — December 18th, 2025, 12:13 pm
View ArticleUsers • Use of HYSPLIT with idealized LES WRF simulations
Good morning everyone,I am trying to use HYSPLIT downstream of idealized LES simulations of WRF (2 m resolution in x, y, and z). I am able to run the arw2arl preprocessor without errors; however, the...
View ArticleHYSPLIT for LINUX • HYSPLIT newer version slower
Hello,I've recently upgraded from version 4.2 to version 5.4 and when running identical runs on the same computer I am seeing that version 5.4 is significantly slower than version 4.2. Is this...
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Conversion programs • GRIB2 to ARL with api2arl_v3
Hello,I am trying to convert custom GRIB2 meteorological data to ARL format usingapi2arl_v3, but the conversion fails immediately with:ECCODES ERROR : IO ERROR: Bad address: (null)STOP 900I have...
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HYSPLIT for LINUX • Extracting vertical velocity variance (w′²) by KBLT...
Hello,I am running HYSPLIT v5.4.2 on CentOS Linux 8, using hycs_std in concentration mode.My goal is to reproduce results similar to the developer paper figures, specifically the vertical velocity...
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